[Asmayus]

...and I want to know what I can fill them with.

I've got 25 standard and 7 breakable compartments. The idea of having a tooth tool set appeals to me immensely, but I'm a bit stuck as to what to put inside them.

As far as I'm concerned, silly is as good as useful.

So get your thinking caps on and get ready to type:

Ready... Set... Go!

[Tagz]

Combat drugs in the breakable.
A remote detonator.
Your car keys.
Someone else's car keys.  You don't know who's.
The bullet with your name on it.
Data chips with your porn collection.  You know, if you go to Australia or something.
Cyanide capsule
Government tracking chip
Alien tracking chip
Wound up monofiliment wire
A weapon foci.  BITE 'EM!

[Asmayus]

Lock picks, Nails and needles have also occurred to me, as has a small pencil/pen.

I also thought of A micro stapler with 4 staple in it, should get a few laughs.

i.e. a tiny version of this: http://techepics.com/files/07_stapler_.jpg

Oh, and a laser pointer/designator

[Rockopolis]

Heh, awesome, not like you're using your teeth for much these days.
Detonator in breakable, C4 in another.  Poison gas, if you can remember the tooth.  Components of the body cavity escape kit.  Poison gas antidote.  Spice rack.  Jammers and tag erasers.  BEES!  Spare oral darts.  Poison to coat your tongue whip.  Toothpase.
He'll, this is practically a golden age super character concept on its own; Jaws.

[Loki]

Enough gum for everyone.

[Rockopolis]

Spare teeth.

[Sid]

25 different holos of your girlfriend. Each of them being a different girl.
You never know when you're really about to die and need a memento to pass on to your 'runner pal. This way, you've got a few spares for when you get the timing wrong.

Binary explosives. (furthest back, top / bottom, left side)

Monowire connecting front three detachable teeth for a monofilament bolas.

Two miniature ration packs.

[Billy_Club]

A hit of K10 for when you've run out of Edge and are at the back of the group, but the rest of your team has an off chance to make it out alive.  Take one for the Gipper, boy-o.

[Rockopolis]

Nothing.  They're there for the intimidation factor; "Dude's so angry he just crushed and spat out a tooth!"
Datajack.

Synthesizer...somehow, I'm picturing someone with nanotats or AR clothing playing the Close Encounters of the Third Kind theme with their teeth.

[Kontact]

What, no anti-anti-cyanide pill?

[LonePaladin]

This is one of those brings-me-to-tears-laughing threads. Let's see if I can contribute.

A commlink.
An emotitoy (the non-mobile variety).
A spell focus.
A speaker, with a wireless link to your PAN so you can play ventriloquist.
Six meters of fishing line, with a motor to allow it to be retracted. The tooth detaches and forms a fishhook. All you need is bait.
Fire-retardant foam. What? You never know.
A miniature fog machine.

[JimJungle]

Just one thing for all of them: CANDY!!

[Frankie the Fomori]

In the breakable compartments i would fill them with different Alcohols to combine into different drinks!

[Rockopolis]

Bullets.

[Dead Monky]

Insects.  Open the tooth and spit them at people.  You have your very own plague powers!